diff --git a/install.sh b/install.sh
index 8b16837..6301a18 100755
--- a/install.sh
+++ b/install.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 if [ -e "$HOME/.profile" ] ; then
-	mv "$HOME/.profile" "$HOME/.profile-original-$(date =%s)"
+	mv "$HOME/.profile" "$HOME/.profile-original-$(date +%s)"
 fi
 
 ln -s "$HOME/.config/profile/profile" "$HOME/.profile"